CN105914104B - A kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms - Google Patents

A kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms Download PDF

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Publication number
CN105914104B
CN105914104B CN201610423179.0A CN201610423179A CN105914104B CN 105914104 B CN105914104 B CN 105914104B CN 201610423179 A CN201610423179 A CN 201610423179A CN 105914104 B CN105914104 B CN 105914104B
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China
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yoke
armature
pole
coil
permanent magnet
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CN105914104A (en
Inventor
叶雪荣
林义刚
付饶
由佳欣
梁慧敏
翟国富
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/16Magnetic circuit arrangements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/44Magnetic coils or windings

Abstract

The present invention discloses a kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms, including coil, coil rack, shaft, armature, yoke, permanent magnet, wherein, the yoke includes left yoke, right yoke and lower yoke, the left yoke and right yoke are oppositely arranged, and the coil rack and the coil are arranged between the left yoke and the right yoke;The lower yoke is arranged between the left yoke and the right yoke, and is located above the coil, and the both ends of the lower yoke pass through permanent magnet respectively and are connected with the left yoke and the right yoke;The armature is pivotly connected with the lower yoke by the shaft, and positioned at the top of the lower yoke, the both ends of the armature are respectively provided with the first pole-face and the second pole-face, to be in contact respectively with the left yoke and right yoke.

Description

A kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms
Technical field
The invention patent relates to relay technical field, in particular to one kind can be applied to a variety of electromagnetic systems such as relay Containing permanent magnetic circuit design.
Background technique
Classify from the motor pattern of armature to containing permanent-magnet relay, rotation armature type, direct acting armature type two can be divided into Class;Wherein rotation armature relay be very important a major class relay, it have it is compact-sized, be widely used, performance Stable feature;Especially have a wide range of applications in space flight, national defence and civil field.It rotates armature type and contains permanent-magnet relay In, retentivity is provided by permanent magnet, and armature is the device of wherein driving contact spring system movement, and yoke is wherein to undertake limiting position of armature Device, centered on them, the entire energized relay circuit of connection iron-core coil etc. other devices composition is directly decide containing forever The overall performance of magnetic relay;Magnetic circuit its corresponding structure design can greatly improve the utilization efficiency of permanent magnet, and with Attractive force and spring force characteristics design value is corresponding;The magnetic circuit controllability formed by permanent magnetism is high, and adjusting factor is more, and expansibility is strong, in reality Various situations are adapted in.
Summary of the invention
The high and adjustable magnetic Circuit Design the purpose of the present invention is to provide a kind of retentivity, to make product actual performance More excellent, debugging is convenient.
In order to achieve the above object, the present invention uses following technical scheme:
A kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms, including coil, coil rack, shaft, armature, yoke Iron, permanent magnet, wherein:
The yoke includes left yoke, right yoke and lower yoke, and the left yoke and right yoke are oppositely arranged, the coil Skeleton and the coil are arranged between the left yoke and the right yoke;Lower yoke setting in the left yoke and Between the right yoke, and it is located above the coil, the both ends of the lower yoke pass through permanent magnet and the left yoke respectively Iron is connected with the right yoke;
The armature is pivotly connected with the lower yoke by the shaft, positioned at the top of the lower yoke, institute The both ends for stating armature are respectively provided with the first pole-face and the second pole-face, to be in contact respectively with the left yoke and right yoke.
The electromagnetic mechanism proposed according to the present invention, wherein the longitudinal section of the left yoke isShape, including left side and a left side Above;The longitudinal section of the right yoke isShape, including right side and upper right face;The permanent magnet respectively with the upper left face Lower surface is connected with the lower surface in the upper right face, and the first pole-face of the armature is in contact with the upper surface in the upper left face, Or the second pole-face of the armature is in contact with the upper surface in the upper right face.
The electromagnetic mechanism proposed according to the present invention, wherein the longitudinal section of the lower yoke isShape.
The electromagnetic mechanism proposed according to the present invention, wherein the permanent magnet is rectangle structure, is magnetized along the vertical direction.
The electromagnetic mechanism proposed according to the present invention, wherein the lateral length in the upper left face is greater than the cross in the upper right face To length.
Compared with prior art, double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms proposed by the present invention are suitably employed in Rotary type electromagnetic system such as relay, contactor in on-load switch equipment, possess that part universality is strong, assembly is simple, single Stable state permanent magnet circuit keeps, permanent magnet adjustment retentivity, configures flexible feature, after Mr. Yu's electromagnetic system, the change of power It can quickly be adjusted by replacing permanent magnet (within the scope of magnetic saturation), permanent magnetism and zero can also be carried out according to the actual situation The multiple adjustment of part size;Permanent magnet can weaken adverse effect of the external condition to permanent magnet far from main contacts, so that this is tied Structure has preferable good external environment interference resistance.
Detailed description of the invention
Fig. 1 is the longitudinal profile schematic diagram of a specific embodiment of the invention;
Fig. 2 is the structural schematic diagram of armature in the present invention;
Fig. 3, Fig. 4 are respectively the magnetic flux path of electromagnetic mechanism of the invention in initial position and final position;
Fig. 5 is the schematic perspective view of electromagnetic mechanism of the invention.
Description of symbols:A1- armature;A2, a3- permanent magnet;A4- lower yoke;The left yoke of a5-;The upper left a51- face;a6- Right yoke;A61- upper right face;A7- iron core;A8- coil;A9- coil rack;A10- shaft;G1, g2- working gas gap.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 5 is please referred to, electromagnetic mechanism of the invention specifically includes armature a1, permanent magnet a2, a3, and lower yoke a4 is left Yoke a5, right yoke a6, iron core a7, coil a8, coil rack a9, shaft a10.Wherein two pieces of permanent magnets are rectangle structure, Vertically mode (short transverse) magnetizes, lower yoke a4 and permanent magnet lower contacts, and armature a1 is movable member.
In the present invention, the longitudinal section of armature a1 be it is flat trapezoidal, it is specific as shown in Figure 2.Armature a1 is divided into centered on shaft Two parts, two parts longitudinal cross-section are all rectangle, centainly scabble on both sides, scabble position be respectively the first pole-face and Armature a1 left-half is known as the first pole-face here to guarantee the fitting problem when turning to one side by the second pole-face, and a1 is right Half part is known as the second pole-face.Lower yoke a4 structure be it is inverted T shaped, left and right yoke is bent into 90 degree.The upper left face a51 of left yoke a5 Length greater than right yoke a6 upper right face a61 length, referred to here as left yoke a5 upper left face a51 be long pole-face, right yoke The upper right face a61 of a6 is short pole-face.Coil is wrapped on the coil rack a9 of the iron core a7 at two yoke centers, the company of installation on armature Bar pushes movable contact spring movement, realizes the switching of signal.
When coil a8 is not powered on, the permanent magnetic field that permanent magnet a2, a3 are generated generates suction to armature, and armature a1 is protected It holds on the long pole-face of left yoke a5, the first pole-face of armature a1 and left yoke a5 long pole-face form working gas gap g1, rank at this time The second pole-face of iron a1 and the short pole-face of right yoke a6 form working gas gap 2.When coil a8 is powered, the electromagnetism magnetic of coil a8 generation Magnetic field effect of the field reduction permanent magnet at working gas gap g1, the suction that the first pole-face of armature a1 is subject to reduce, meanwhile, coil a8 The electromagnetic field of generation reinforces magnetic field effect of the permanent magnet at working gas gap g2, and the suction that the second pole-face of armature a1 is subject to increases Greatly.Cooperate spring force, when the suction square clockwise that armature a1 is subject to is greater than spring force square, armature a1 starts to turn clockwise It is dynamic, it separates, is finally closed on right yoke a6 with left yoke a5, complete adhesive action.When coil a8 power down, armature a1 second The suction that pole-face is subject to is gradually reduced, and when the suction square clockwise that armature a1 is subject to is less than spring force square, armature a1 starts It rotates counterclockwise, is separated with right yoke a6, finally closed on left yoke a5, complete release movement.In above process, armature A1 drives connecting rod, acts movable contact spring, completes the signal switching of relay.
Specific work process is as follows:
Such as Fig. 2, the left end armature a1 closure is in releasing position, the first pole-face of armature a1 is contacted with left yoke a5 long pole-face; Coil a8 is wrapped on the coil rack a9 of left and right yoke a5, a6 central core a7, the first pole-face of armature a1 and left yoke a5 long Pole-face forms working gas gap g1, and the small pole-face of armature a1 and the short pole-face of right yoke a6 form working gas gap g2.Coil a8 is not added at this time The permanent magnetic circuit magnetic flux of electric current has three closed paths, path 1:The pole N --- left yoke a5 --- work gas of left permanent magnetism a2 --- --- --- middle section lower yoke a4 --- left side lower yoke a4 --- is left forever by shaft a10 for the left side armature a1 by gap g1 The pole S of magnetic a2;Path 2:--- --- working gas gap g2 --- armature a1 right side --- turns right yoke a6 for the pole N of right permanent magnetism a3 --- the middle section lower yoke a4 --- the lower yoke a4 right side --- pole S of right permanent magnetism a3 axis a10;Path 3:Right permanent magnetism a3's The pole N --- right yoke a6 --- iron core a7 --- left yoke a5 --- working gas gap g1 --- left side armature a1 --- shaft --- the middle section lower yoke a4 --- the lower yoke a4 right side --- pole S of right permanent magnetism a3 a10.
If Fig. 2, armature a1 are closed in left end, it is in releasing position, generates anticlockwise electromagnetism when coil a8 is powered When magnetic flux, the permanent magnet flux in permanent magnet flux path 1 and path 3 is with electromagnetism flow direction on the contrary, the suction at working gas gap g1 subtracts Small, permanent magnet flux of the permanent magnet flux path 2 at the working gas gap g2 of right side is identical as electromagnetism flow direction, at working gas gap g2 Suction increases.Cooperate spring force, when the suction square clockwise that armature a1 is subject to is greater than spring force square, armature a1 starts suitable Hour hands rotation, separates with left yoke a5, finally closes on right yoke a6, completes adhesive action.
If Fig. 3, armature a1 are closed in right end, when being in attracted position, three closed paths of permanent magnetic circuit magnetic flux are road Diameter 1:The pole the N --- working gas gap g1 --- left side armature a1 --- shaft a10 --- lower yoke a4 middle part of left permanent magnetism a2 Divide --- left side lower yoke a4 --- pole S of left permanent magnetism a2;Path 2:The pole N --- left yoke a5 --- iron core of left permanent magnetism a2 A7 --- right yoke a6 --- --- armature a1 right side --- shaft a10 --- lower yoke a4 middle part of working gas gap 2 Divide --- left side lower yoke a4 --- pole S of left permanent magnetism a2;Path 3:It holds in the mouth the pole N --- working gas gap g2 --- of right permanent magnetism a3 Iron a1 the right side --- --- middle section lower yoke a4 --- lower yoke a4 right side --- pole S of right permanent magnetism a3 shaft a10. When coil a8 power down, the suction that the small pole-face of armature a1 is subject to is gradually reduced, when the suction square clockwise that armature a1 is subject to is less than When spring force square, armature a1 starts to rotate counterclockwise, and separates with right yoke a6, finally closes on left yoke a5, completes to release Put movement.
During above-mentioned actuation and release, armature a1 drives connecting rod, acts movable contact spring, the signal for completing relay is cut It changes.
Those of ordinary skill in the art will appreciate that:Attached drawing is the schematic diagram of one embodiment, module in attached drawing or Process is not necessarily implemented necessary to the present invention.
Those of ordinary skill in the art will appreciate that:The module in device in embodiment can describe to divide according to embodiment It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that:It still may be used To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features;And These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution It encloses.

Claims (2)

1. a kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms, including coil, coil rack, shaft, armature, yoke, Permanent magnet, it is characterised in that:
The yoke includes left yoke, right yoke and lower yoke, and the left yoke and right yoke are oppositely arranged, the lower yoke Longitudinal section is ┻ shape, and the coil rack and the coil are arranged between the left yoke and the right yoke;Under described Yoke is arranged between the left yoke and the right yoke, and is located above the coil, the both ends point of the lower yoke Not Tong Guo permanent magnet be connected with the left yoke and the right yoke;
The armature is pivotly connected with the lower yoke by the shaft, positioned at the top of the lower yoke, the rank The both ends of iron are respectively provided with the first pole-face and the second pole-face, to be in contact respectively with the left yoke and right yoke,
The longitudinal section of the left yoke is ┌ shape, including left side and upper left face;The longitudinal section of the right yoke is ┐ shape, including Right side and upper right face;The permanent magnet is connected with the lower surface of the lower surface in the upper left face and the upper right face respectively, institute The first pole-face for stating armature is in contact with the upper surface in the upper left face or the second pole-face of the armature and the upper right face Upper surface is in contact,
The lateral length in the upper left face is greater than the lateral length in the upper right face.
2. electromagnetic mechanism according to claim 1, which is characterized in that the permanent magnet is rectangle structure, vertically side To magnetizing.
CN201610423179.0A 2016-06-14 2016-06-14 A kind of double permanent magnetism length yoke pole-face monostable electromagnetic mechanisms Active CN105914104B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941130A (en) * 1956-09-14 1960-06-14 Siemens Ag Polarized relay
CN2129972Y (en) * 1992-04-17 1993-04-14 乐清县虹桥电子仪器厂 High sensitive mini relay
JPH07335107A (en) * 1994-06-07 1995-12-22 Mitsuki Nagamoto Polarized electromagnet
CN201838418U (en) * 2010-09-02 2011-05-18 乐清市广威电子有限公司 Magnetic latching magnetic circuit system
CN104221118A (en) * 2012-06-08 2014-12-17 富士电机机器制御株式会社 Electromagnetic contactor
CN105023805A (en) * 2015-07-21 2015-11-04 哈尔滨工业大学 Novel permanent magnetic loop return-type electromagnetic structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941130A (en) * 1956-09-14 1960-06-14 Siemens Ag Polarized relay
CN2129972Y (en) * 1992-04-17 1993-04-14 乐清县虹桥电子仪器厂 High sensitive mini relay
JPH07335107A (en) * 1994-06-07 1995-12-22 Mitsuki Nagamoto Polarized electromagnet
CN201838418U (en) * 2010-09-02 2011-05-18 乐清市广威电子有限公司 Magnetic latching magnetic circuit system
CN104221118A (en) * 2012-06-08 2014-12-17 富士电机机器制御株式会社 Electromagnetic contactor
CN105023805A (en) * 2015-07-21 2015-11-04 哈尔滨工业大学 Novel permanent magnetic loop return-type electromagnetic structure

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